सूर्यरथ-कालचक्र-आयनविभागः, संध्योपासनम्, देवयान-पितृयानम्, विष्णुपद-गङ्गावतरणम्
दक्षिणं चोत्तरं चैव मध्यं वैषुवतं तथा शरद्वसन्तयोर् मध्ये तद् भानुः प्रतिपद्यते मेषादौ च तुलादौ च मैत्रेय विषुवत्स्थितः
dakṣiṇaṃ cottaraṃ caiva madhyaṃ vaiṣuvataṃ tathā śaradvasantayor madhye tad bhānuḥ pratipadyate meṣādau ca tulādau ca maitreya viṣuvatsthitaḥ
हे मैत्रेय! सूर्य दक्षिणायन, उत्तरायण आणि मध्याची वैषुवत (विषुव) अशी स्थिती धारण करतो. शरद् व वसंत यांच्या मध्ये तो त्या विषुव-संतुलनास प्राप्त होतो; आणि मेषाच्या आरंभी व तुलाच्या आरंभी तो विषुवस्थितीत असतो।
Sage Parāśara (teaching Maitreya)
This verse presents viṣuvat as the Sun’s “middle” station—an equilibrium that regulates seasonal transitions and the balance of day and night, anchoring sacred time-reckoning.
He describes three modes of the Sun’s course—southern, northern, and the equinoctial middle—stating that the equinox is reached between autumn and spring and specifically at the beginnings of Meṣa and Tulā.
By depicting the Sun’s orderly motion and seasonal balance as a fixed cosmic law, the Purāṇic worldview implies an overarching sovereignty of the Supreme Reality—Vishnu—as the sustaining principle behind cosmic rhythm and dharma.